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  • 2005-2009  (2,103,038)
  • 1980-1984  (1,016,015)
  • 1970-1974  (755,911)
  • 1955-1959  (303,706)
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Years
Year
  • 1
    Type of Medium: Non-book medium
    Pages: Online-Ressource
    Series Statement: UMI no. 1472932
    Note: San Antonio, Univ. of Texas, Diss., 2009
    Branch Library: GFZ Library
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  • 2
    Monograph available for loan
    Monograph available for loan
    Moskva : Nauka
    Call number: 12256
    Type of Medium: Monograph available for loan
    Pages: 191 S
    Language: Russian
    Note: In kyrill. Schr.
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 3
    Call number: 12544
    Type of Medium: Monograph available for loan
    Pages: 230 S.
    Language: Russian
    Note: In kyrill. Schr.
    Location: Upper compact magazine
    Branch Library: GFZ Library
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  • 4
    Monograph available for loan
    Monograph available for loan
    Frankfurt am Main [u.a.] : EW Medien und Kongresse
    Call number: PIK P 129-16-89768
    Type of Medium: Monograph available for loan
    Pages: XXXI, 406 S. , Ill., graph. Darst. , 21 cm
    Edition: 2. Aufl.
    ISBN: 9783802209635
    Series Statement: Energie im Dialog 3
    Language: German
    Location: A 18 - must be ordered
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  • 5
    Monograph available for loan
    Monograph available for loan
    Cambridge, Mass : MIT Press
    Call number: IASS 16.90011
    Type of Medium: Monograph available for loan
    Edition: Online-Ausg.
    ISBN: 0585374848 (electronic bk.) , 9780585374840 (electronic bk.) , 0262530457 (print)
    Parallel Title: Print version Macroeconomics after Keynes
    Language: English
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  • 6
    Monograph available for loan
    Monograph available for loan
    Bonn : The Earth System Governance Project
    Call number: IASS 17.91029
    Type of Medium: Monograph available for loan
    Pages: 144 S.
    ISBN: 9783000276309
    Series Statement: IHDP report 20
    Language: English
    Branch Library: RIFS Library
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  • 7
    Call number: PIK W 510-16-89879
    In: Research report
    Type of Medium: Monograph available for loan
    Pages: X, 230 Seiten , Illustrationen, graphische Darstellungen
    ISBN: 9789525453843
    Series Statement: Research report 25
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  • 8
    Monograph available for loan
    Monograph available for loan
    Madrid : Cartografía Española, S.A.
    Call number: MOP A2 17-91141
    Type of Medium: Monograph available for loan
    Pages: 43 Bl , überw. Kt , 43 x 54 cm
    ISBN: 845009495X
    Language: Spanish
    Note: In span. Sprache
    Location: MOP - must be ordered
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  • 9
    Call number: M 17.91120
    Type of Medium: Monograph available for loan
    Pages: 609 S.
    Language: German
    Location: Upper compact magazine
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  • 10
    Type of Medium: 12
    Pages: 80 S. , Ill., graph. Darst.
    Series Statement: IHP-VII Technical Documents in Hydrology 83
    Language: English
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  • 11
    Call number: M 16.90208
    Type of Medium: Monograph available for loan
    Pages: 165 S. , graph. Darst., Kt.
    Language: German
    Location: Upper compact magazine
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  • 12
    Monograph available for loan
    Monograph available for loan
    Mill Valley, Calif. : Univ. Science Books
    Call number: M 16.90211
    Type of Medium: Monograph available for loan
    Pages: XVIII, 700 Seiten , zahlr. graph. Darst.
    Edition: 2. ed., corr. print.
    ISBN: 9781891389634 (pbk)
    Language: English
    Location: Upper compact magazine
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  • 13
    Call number: SR 90.0907(10)
    Type of Medium: Series available for loan
    Pages: II, 135 S.
    Series Statement: Berichte des Instituts für Geophysik der Ruhr-Universität Bochum : Reihe A 10
    Language: German
    Note: Zugl.: Bochum, Univ., Diss., 1981
    Location: Lower compact magazine
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  • 14
    Call number: M 16.90217
    Type of Medium: Monograph available for loan
    Pages: 144 S. , graph. Darst.
    Language: German
    Note: Kiel, Univ., Diss., 1984.
    Location: Upper compact magazine
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  • 15
    Monograph available for loan
    Monograph available for loan
    Jakutsk : Inst. Merzlotovedenija
    Call number: AWI G3-16-90233
    Type of Medium: Monograph available for loan
    Pages: 164 S.
    Language: Russian
    Note: In kyrill. Schr.
    Location: AWI Reading room
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  • 16
    Monograph available for loan
    Monograph available for loan
    Novosibirsk : Izd. Nauka
    Call number: AWI G3-16-90240
    Type of Medium: Monograph available for loan
    Pages: 135 S. , Ill., graph. Darst.
    Language: Russian
    Note: In kyrill. Schr.
    Location: AWI Reading room
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  • 17
    Call number: ZSP-980-89 ; ZSP-980-89(2. Ex.)
    In: ZfI-Mitteilungen ; 89, Nr. 89
    Type of Medium: Series available for loan
    Pages: 132 S. , Ill., graph. Darst., Kt.
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 89
    Language: English
    Note: Contents: Preface. - Tritium in Antarctic precipitation - information on global distribution / D. Hebert. - On the physical geography of the Schirmacher Oasis (East Antarctica, Dronning Maud Land) / W. Richter. - Investigation of Deuterium concentration relations between atmospheric water vapour and precipitations in the Schirmacher Oasis, East Antarctica / P. Kowski. - Isotope-hydrological and hydrochemical characterization of lakes in the Schirmacher Oasis (East Antarctica) / W. Richter, U. Wand, G. Strauch, P. Kowski, W. Kurze. - Isotope-hydrological and hydrochemical studies of the interior Antarctic lake "Untersee" in the Wohlthat Massif, Dronning Maud Land, East Antarctica / W.-D. Hermichen, M. Crelle, P. Kowski, W. Kurze, U. Wand. - The isotope-glaciological situation in the surroundings of the Schirmacher Oasis/Dronning Maud Land - a first overview / W.-D. Hermichen, P. Kowski, G. Strauch. - Radiocarbon dating of breeding places of petrels in the Antarctic / A. Hiller, U. Wand. - K - Ar dating of basalt dykes in the Schirmacher Oasis, Dronning Maud Land, East Antarctica / G. Kaiser, U. Wand.
    Location: AWI Archive
    Location: AWI Archive
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  • 18
    Monograph available for loan
    Monograph available for loan
    Dordrecht : Springer Science + Business Media B.V
    Call number: PIK N 456-16-90276
    Description / Table of Contents: This textbook describes various physical, radiative, dynamical and chemical processes involved in the coupling between the Stratosphere and Troposphere. This textbook is intended for graduate students in middle atmosphere stratospheric physics, dynamic and atmospheric science courses and will be useful to all research workers in meteorology, aeronomy, atmospheric physics, atmospheric chemistry and environmental sciences. Current areas of interest, such as Antarctic ozone hole, global warming effects on stratospheric cooling are also addressed. Stratosphere troposphere exchange, transport processes in the upper troposphere and lower stratosphere and the role of stratosphere on tropospheric weather systems are presented. The information provided in the textbook will have broad applicability in other branches of atmospheric science, and will be of interest to those studying such areas as climate change, extreme weather events, and potential for the prediction of tropospheric weather systems.
    Type of Medium: Monograph available for loan
    Pages: XVII, 416 Seiten , Illustrationen, Diagramme
    ISBN: 9781402082160 , 9781402082177
    Language: English
    Note: ""Preface""; ""Acknowledgments""; ""Contents""; ""Chapter 1 Structure and Composition of the Lower and Middle Atmosphere""; ""Chapter 2 Radiative Processes in the Lower and Middle Atmosphere""; ""Chapter 3 Dynamics of the Troposphere and Stratosphere""; ""Chapter 4 Waves in the Troposphere and Stratosphere""; ""Chapter 5 Chemical Processes in the Stratosphere and Troposphere""; ""Chapter 6 Stratospheric Ozone Depletion and Antarctic Ozone Hole""; ""Chapter 7 Transport Processes in the Stratosphere and Troposphere""; ""Chapter 8 Stratosphere�Troposphere Exchange"". , ""Chapter 9 Stratospheric Influence on Tropospheric Weather and Climate""""Acronyms""; ""List of Symbols""; ""Table of Physical Constants""; ""Answers to Selected Problems""; ""Index"".
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  • 19
    Monograph available for loan
    Monograph available for loan
    Amsterdam [u.a.] : Elsevier Scientific Publ.
    Associated volumes
    Call number: AWI Bio-99-0079-2
    In: The Northwest European Pollen Flora, II
    Type of Medium: Monograph available for loan
    Pages: V, 265 S. , zahlr. Ill.
    ISBN: 0444418806
    Language: English
    Note: CONTENTS: Preface / G. C. S. Clarke and W. Punt. - 8. Solanaceae / W. Punt and M. Monna-Brands. - 9. Saxifragaceae / A. A. M. L. Verbeek-Reuvers. - 10. Boraginaceae / G. C. S. Clarke. - 11. Escalloniaceae / A. A. M. L. Verbeek-Reuvers. - 12. Grossulariaceae / A.A.M.L. Verbeek-Reuvers. - 13. Hydrangeaceae / A. A. M. L. Verbeek-Reuvers. - 14. Parnassiaceae / A. A. M. L. Verbeek-Reuvers. - 15. Plantaginaceae / G. C. S. Clarke and M. R.Jones. - 16. Valerianaceae / G. C. S. Clarke and M. R. Jones. - 17. Aceraceae / G. C. S. Clarke and M. R. Jones. - 18. Hippuridaceae / M. S. Engel. - 19. Haloragaceae / M. S. Engel. - 20. Papaveraceae / A. J. Kalis. - Index. - Errata.
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  • 20
    Monograph available for loan
    Monograph available for loan
    Moskva : Izdat. Feorija
    Call number: AWI Atl-18-91583
    Type of Medium: Monograph available for loan
    Pages: 869 S. , zahlr. Ill., Kt. , 25,0 x 34,0
    ISBN: 5287005318 , 9785287005313
    Language: Russian
    Note: In kyrill. Schr.
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  • 21
    Monograph available for loan
    Monograph available for loan
    Basingstoke [u.a.] : Palgrave Macmillan
    Call number: PIK B 100-18-91588
    Type of Medium: Monograph available for loan
    Pages: XII, 423 Seiten , Diagramme , 22 cm
    ISBN: 1403920737 (hbk.) , 9781403920737 (hbk.) , 1403920745 (pbk.) , 9781403920744 (pbk.)
    Language: English
    Note: Contents: Prologue: Searching for a New Kind of Economics ; Japanese Economic Performance During the 1990s ; The Enigma of the Ineffectiveness of Fiscal Policy in the 1990s ; The Enigma of the Ineffectiveness of Interest Rate Policy in the 1990s ; The Enigma of Japan’s Long Recession ; The Enigma of the Ineffectiveness of Structural Policy ; The Enigma of Economic Growth ; The Enigma of the Velocity Decline ; The Enigma of Japanese Asset Prices ; The Enigma of Japanese Capital Flows in the 1980s ; The Enigma of Japanese Bank Lending ; The Enigma of Banking and its Recurring Crises ; Solving the Enigma of Banking and Money ; Credit, Money and the Economy ; Explaining the Velocity Decline ; The Determinants of Growth ; The Cause of the Asset Price Bubbles and Banking Crises ; The Determinants of Japanese Capital Flows in the 1980s ; Why Fiscal Policy Could Not Work ; Monetary Policy in the 1990s and How to Create a Recovery ; Monetary Policy in the 1980s: How Bank Credit was Determined ; Banking Reform ; The Goal of Fiscal, Structural and Monetary Policy ; A New Kind of Economics ; A New Vision of Macroeconomic Policy
    Location: A 18 - must be ordered
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  • 22
    Series available for loan
    Series available for loan
    Leipzig : Dt. Verl. für Grundstoffindustrie
    Associated volumes
    Call number: SR 99.0015(391)
    In: Beiträge zur allgemeinen und speziellen Paläontologie, Teil III
    In: Freiberger Forschungshefte : Reihe C, Geowissenschaften, Paläontologie, 391
    Type of Medium: Series available for loan
    Pages: 94 S. , Ill., graph. Darst.
    Edition: 1. Aufl.
    ISSN: 0071-9404
    Series Statement: Freiberger Forschungshefte : Reihe C, Geowissenschaften, Paläontologie 391
    Language: German
    Note: Inhaltsverzeichnis: Annotation. - Autorenverzeichnis. - Die Blattodea (Insecta) des Paläozoikums, Teil II: Morphogenese der Flügelstrukturen und Phylogenie / Jörg Schneider. - Zur Taxonomie und Biostratigraphie der Conchostraca (Phyllopoda, Crustacea) des Rotliegenden (oberes Karbon bis Perm) im Saar-Nahe-Gebiet (BRD) / Thomas Martens. - Zur Ichnologie der Arthropoda / Harald Walter.
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  • 23
    Monograph available for loan
    Monograph available for loan
    Oxford [u.a.] : Oxford University Press
    Call number: PIK B 100-18-91420
    Type of Medium: Monograph available for loan
    Pages: XXVII, 531 Seiten , Diagramme
    Edition: 3. edition
    ISBN: 9780199234783
    Language: English
    Note: Contents: 1: Market performance: possibilities and prescriptions ; 2: Externalities ; 3: Public goods ; 4: Collective decision-making: searching for the 'public interest' ; 5: Rent-seeking, public provision and the 'return to the market' ; 6: Evaluation of public expenditure: cost-benefit analysis ; 7: Tax theory: the basic concepts ; 8: Tax evasion and the black economy ; 9: Income (re)distribution ; 10: Central government ; 11: Public choice aspects of macroeconomic policies ; 12: Local government 13: International issues and global goals ; 14: Optimal taxation ; 15: 'Behavioural public finance' and the role of the public sector ; 16: Public sector failure and public expenditure growth
    Location: A 18 - must be ordered
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  • 24
    Monograph available for loan
    Monograph available for loan
    Oxford [u.a.] : Oxford Univ. Press
    Call number: IASS 16.90503
    Type of Medium: Monograph available for loan
    Pages: XIII, 269 S
    Edition: repr
    ISBN: 0198292260 , 019829509X , 9780198295099
    Language: English
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  • 25
    Monograph available for loan
    Monograph available for loan
    New York, NY [u.a.] : Routledge
    Call number: IASS 16.90505
    Type of Medium: Monograph available for loan
    Pages: VIII, 227 S.
    ISBN: 0415800412 (hbk.) , 9780415800419 (hbk.) , 0203872770 (electronic) , 9780203872772 (electronic)
    Series Statement: Routledge studies in rhetoric and communication 1
    Language: English
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  • 26
    Call number: IASS 16.90509
    Type of Medium: Monograph available for loan
    Pages: 332 S. , graph. Darst.
    Edition: 1. Aufl.
    ISBN: 383291692X
    Series Statement: Studien zum Parlamentarismus 3
    Language: German
    Note: Zugl.: Halle-Wittenberg, Univ., Diss., 2005
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  • 27
    Monograph available for loan
    Monograph available for loan
    Basingstoke [u.a.] : Palgrave Macmillan
    Call number: IASS 16.90510
    Type of Medium: Monograph available for loan
    Pages: XI, 216 S , graph. Darst
    ISBN: 0230019870 (pbk) , 9780230019874 (pbk) , 0230019862 (hbk) , 9780230019867 (hbk)
    Language: English
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  • 28
    Monograph available for loan
    Monograph available for loan
    New York : Columbia University Press
    Call number: IASS 16.90522
    Type of Medium: Monograph available for loan
    Pages: IX, 294 S.
    ISBN: 9780231137416 (pbk) , 9780231137409 (cloth) , 9780231510448 (e-book)
    Series Statement: Columbia studies in political thought, political history
    Language: English
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  • 29
    Monograph available for loan
    Monograph available for loan
    London [u.a.] : Routledge
    Call number: IASS 16.90523
    Type of Medium: Monograph available for loan
    Pages: XII, 260 S. , graph. Darst.
    Edition: 2. ed., transferred to digital printing
    ISBN: 0415231744 (hbk.) , 0415231752 (pbk.)
    Series Statement: The Interface series
    Language: English
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  • 30
    Monograph available for loan
    Monograph available for loan
    Cambridge [u.a.] : Cambridge Univ. Press
    Call number: IASS 16.90527
    Type of Medium: Monograph available for loan
    Pages: VII, 262 S
    ISBN: 052183810X (hardback) , 9780521838108 (hardback) , 0521546982 (pbk.) , 9780521546980 (pbk.)
    Language: English
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  • 31
    Call number: AWI Bio-16-90312
    In: Developments in Hydrobiology ; 197
    Description / Table of Contents: Ostracods, small aquatic Crustacea, occur in almost every marine, brackish and freshwater habitat. Their calcified bivalved carapaces readily fossilize and their record in earth history is long, dense and diverse. Ostracod species are particularly useful as tools in marine and limnic (palaeo-) ecology, in (palaeo-) biogeography, and biostratigraphy. Their reproductive morphology is as extraordinary as their reproductive modes, and many of their physiological peculiarities remain mysterious. Ostracod taxonomy and phylogeny contribute to general studies of crustacean evolution. The diversity of ostracod applications in both biology and palaeontology is clearly illustrated by the eighteen papers of the 15th International Symposium on Ostracoda (Berlin, Germany) in 2005, which are grouped in the present proceedings, one of three volumes resulting from this meeting.
    Type of Medium: Monograph available for loan
    Pages: VI, 272 S , Ill., graph. Darst.
    Edition: 1. ed.
    ISBN: 1402064179 (Gb.) , 9781402064173 (Gb.)
    Series Statement: Developments in Hydrobiology 197
    Language: English
    Note: TABLE OF CONTENTS: Preface / R. Matzke-Karasz, M. Schudack, K. Martens. - REVIEW PAPER. - Ostracod recovery in the aftermath of the Permian-Triassic crisis: Palaeozoic-Mesozoic turnover / S. Crasquin-Soleau, T. Galfetti, H. Bucher, S. Kershaw, Q. Feng. - OSTRACOD TAXONOMY AND BIOGEOGRAPHY. - The influence of El Niño 1997-98 on pelagic ostracods in the Humboldt Current Ecosystem off Peru / R. Castillo, T. Antezana, P. Ayón. - A new, interstitial species of Terrestricythere (Crustacea: Ostracoda) and its microdistribution at Orito Beach, northeastern Sea of Japan / S. F. Hiruta, S.-i. Hiruta, S. F. Mawatari. - Non-marine Ostracoda (Crustacea) of Banat district in Serbia / T. Karan-Žnidaršič, B. Petrov. - ECOLOGICAL FACTORS AFFECTING OSTRACOD DISTRIBUTION. - A year round comparative study on the population structures of pelagic Ostracoda in Admiralty Bay (Southern Ocean) / K. Blachowiak-Samolyk, M.V. Angel. - Water quality and diversity of the Recent ostracod fauna in lowland springs from Lombardy (northern Italy) / V. Pieri, C. Caserini, S. Gomarasca, K. Martens, G. Rossetti. - Factors affecting spatial and temporal distribution of Ostracoda assemblages in different macrophyte habitats of a shallow lake (Lake Fehér, Hungary) / A. Kiss. - Groundwater Ostracods from the arid Pilbara region of northwestern Australia: distribution and water chemistry / J. M. Reeves, P. De Deckker, S. A. Halse. - Ecological requirements of Ostracoda (Crustacea) in a heavily polluted shallow lake, Lake Yeniçağa (Bolu, Turkey) / O. Külköylüoğlu, M. Dügel, M. Kılıç. - Food selection in Eucypris virens (Crustacea: Ostracoda) under experimental conditions / O. Schmit, G. Rossetti, J. Vandekerkhove, F. Mezquita. - EVOLUTIONARY SIGNIFICANCE OF OSTRACOD MORPHOLOGY. - Extra-lobal and complex dimorphic features in Middle Devonian palaeocopine ostracods / G. Becker, W. K. Braun. - Evolutionary and taxonomic aspects within the species group Pseudocandona eremita (Vejdovský) (Ostracoda, Candonidae) / S. lepure, T. Namiotko, D. L. Danielopol. - On the origin of the putative furca of the Ostracoda (Crustacea) / C. Meisch. - Ultrastructure of the carapace margin in the Ostracoda (Arthropoda: Crustacea) / S. Yamada. - Ultrastructure of hepatopancreas and its possible role as a hematopoietic organ in non-marine cypridoidean ostracods (Crustacea) / R. Symonova. - OSTRACOD REPRODUCTION AND ONTOGENY. - Copulatory behaviour and sexual morphology of three Fabaeformiscandona Krstić, 1972 (Candoninae, Ostracoda, Crustacea) species from Japan, including descriptions of two new species / R. J. Smith, T. Kamiya. - Early release of eggs and embryos in a brooding ancient asexual ostracod: brood selection or a gambling strategy to increase fecundity? / R. L. Pinto, C. E. F. Rocha, K. Martens. - The ontogeny of appendages of Heterocypris salina (Brady, 1868) Ostracoda (Crustacea) / N. Kubanç, O. Özuluğ, C. Kubanç.
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  • 32
    Monograph available for loan
    Monograph available for loan
    New York : HarperOne
    Call number: IASS 16.90551
    Type of Medium: Monograph available for loan
    Pages: XXII, 147 S
    Edition: 1. Harperone paperback ed
    ISBN: 9780060937133
    Language: English
    Branch Library: RIFS Library
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  • 33
    Call number: AWI A3-18-91446
    Type of Medium: Monograph available for loan
    Pages: XV, 554 S. , Ill., graph. Darst., Kt. , 24 cm
    Edition: 12., überarb. Aufl. neu bearb. von Frank-Michael Chmielewski ...
    ISBN: 3835100963 , 9783835100961
    Language: German
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  • 34
    Call number: IASS 16.90608
    Type of Medium: Monograph available for loan
    Pages: XIX, 365 S , Ill., graph. Darst , 235 mm x 155 mm
    ISBN: 140208563X , 9781402085635 , 1402085648 , 9781402085642 , 9781402085659 (electronic)
    Series Statement: NATO science for peace and security series
    Language: English
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  • 35
    Monograph available for loan
    Monograph available for loan
    Cambridge [u.a.] : Cambridge Univ. Press
    Call number: IASS 16.90617
    Type of Medium: Monograph available for loan
    Pages: XVII, 213 S.
    Edition: Digital pr., 1. paperback version
    ISBN: 0521030803 (pbk) , 9780521030809 (pbk) , 0521653185 (hbk) , 9780521653183 (hbk)
    Language: English
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  • 36
    Call number: M 17.90395
    Type of Medium: Monograph available for loan
    Pages: XI, 88 S. , graph. Darst.
    Classification:
    Photogrammetry, Remote Sensing
    Language: English
    Note: @Potsdam, Univ., Diss., 2007
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  • 37
    Call number: AWI G1-18-91726
    Type of Medium: Dissertations
    Pages: VIII, 111 S. , Ill., graph. Darst., Kt. , 2 Beil.
    Language: German
    Note: Tübingen, Univ., Diss., 1972 , INHALTSVERZEICHNIS: Vorwort. - Zusammenfassung. - I. Einleitung. - II. Geologie von Santorin. - 1. Geologische Karte. - 1.1. Vorbemerkungen. - 1.2. Beschreibung der geologischen Karte. - 1.2.1. Basalkomplex: Großer Eliasberg (568 m) mit dem südwestlich davon gelegenen Platanymos-Rücken, sowie das Gebiet um das Kap Athinios. - 1.2.2. Vulkanreste auf der Halbinsel Akrotiri. - 1.2.3. Vulkanite des Thera-Vulkans. - 1.2.4. Vulkanbauten im nördlichen Teil der Insel Thera und auf Therasia. - 1.2.5. Vulkanite des Skaros-Vulkans. - 1.2.6. Die Santorin-Caldera mit Paläa-Kameni und Nea-Kameni. - 2. Geologische Profile. - 2.1. Vorbemerkungen. - 2.2. Beschreibung von drei typischen Caldera-Längsprofilen. - 2.2.1. Längsprofil beiderseits der Skala von Fira. - 2.2.2. Längsprofil westlich von Kap Thermia unterhalb der einzelstehenden Windmühle. - 2.2.3. Längsprofil beiderseits des Balos-Felsens. - 3. Rekonstruktion der vulkanischen Vorgänge auf Santorin. - III. Petrographische Untersuchungen der wichtigsten pyroklastiachen Folgen auf Santorin. - 1. Beschreibung der auftretenden Minerale. - 1.1. Feldspäte. - 1.2. Pyroxene. - 1.3. Amphibole. - 1.4. Magnetit. - 1.5. Akzessorien. - 2. Beschreibung des pyroklastiachen Materials. - 2.1. Die pyroklastischen Folgen der Vulkane auf der Halbinsel Akrotiri. - 2.1.1. Dazitischer Bimssteintuff des Lumaravi-Archangelo-Massivs (Einheit I ). - 2.1.2. Dazitischer Bimssteintuff am Kap Akrotiri (Fanari) (Einheit II). - 2.1.3. Rhyodazitischer Glastuff an der Basis des Balos-Felsens (Einheit III). - 2.2. Die pyroklastischen Folgen des Thera-Vulkans. - 2.2.1, Rötliches quarz-latiandesitisches Schlackenagglomerat an der Basis des Calderaprofils zwischen Kap Athinios und Akrotiri. - 2.2.2. Untere rhyodazitische Bimsstein-Folge (Bu). - 2.2.3. Rötlicher dazitischer Ignimbrit an der Basis des Calderaprofils zwischen der Skala von Fira und der Skaros-Bastion. - 2.2.4. Mittlere dazitische Bimsstein-Folge (Bm). - 2.2.5. Dazitischer Ignimbrit im Liegenden der Oberen Bimsstein-Folge. - 2.2.6. Obere rhyodazitische Bimsatein-Folge (Bo). - 3. Die chemische Zusammensetzung des pyroklastischen Materials. - 3.1. Neue Hauptelement-Analysen des untersuchten pyroklastischen Materials und deren Auswertung. - 3.2. Spurenelement-Analysen des untersuchten pyroklastischen Materials. - 3.3 Änderung des Chemismus innerhalb eines Ignimbritprofils in Abhängigkeit vom Verschweißungsgrad der einzelnen Ignimbrithorizonte. - 3.3.1 Einleitung. - 3.3.2 Methodik der Dichte- bzw. Porositäts-Messungen. - 3.3.3 Dichte und Chemismus in einem Ignimbrit-Vertikalprofil am Caldera-Abbruch nordöstlich Akrotiri. - IV. Zur Genese des pyroklastischen Materials von Santorin. - 1. Herkunft des pyroklastischen Materials. - 2. Genetische Zusammenhänge zwischen dem pyroklastischen Material und anderen Vulkaniten von Santorin. - 3. Genese des pyroklaatiachen Materials. - 3.1. Allgemeine genetische Überlegungen hinsichtlich der pyroklastischen Folgen auf Santorin. - 3.2. Überlegungen zur Genese der Ignimbrite von Santorin. - Literatur. - Anhang. - Vorschlag einer Klassifikation von vulkanoklastischem Material. - A. Pyroklastisches Material. - B. Autoklastisches Material. - C. Pseudoklastisches Material. - Literatur. - Beilagen.
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  • 38
    Monograph available for loan
    Monograph available for loan
    Berlin : Zentralinstitut für Physik der Erde
    Call number: AWI G2-19-92036
    Type of Medium: Monograph available for loan
    Pages: 78 Seiten , Illustrationen
    Language: German
    Note: Inhaltsverzeichnis: 1. Vorwort. - 2. Struktur und Entwicklung der Antarktischen Platte. - 2.1. Generelle Kennzeichnung der Antarktischen Platte. - 2.2. Tripelpunkte. - 2.2.1. Bouvet-Tripelpunkt. - 2.2.2. Indik-Tripelpunkt. - 2.2.3. Macquarie-Tripelpunkt. - 2.2.4. Osterinsel-Tripelpunkt. - 2.3. Plattengrenzen und Plattenfelder. - 2.3.1. Bouvet-Indik-Feld. - 2.3.1.1. Ausbildung der Plattengrenze. - 2.3.1.2. Anomale Entwicklung südlich der Agulhas-Bruchzone. - 2.3.1.3. Inseln und submarine Plateaus im südlichen Indik. - 2.3.2. Indik-Macquarie-Feld. - 2.3.3. Macquarie-Osterinsel-Feld. - 2.3.3.1. Ausbildung der Plattengrenze. - 2.3.3.2. Sandwich- und Scotia-Platte. - 2.3.4.3. Beziehungen zwischen Südamerika und Antarktika und das Problem der Antarktischen Halbinsel. - 2.3.4.4. Weddellbecken. - 2.3.4.5. "Drake-Platte". - 2.3.4.6. Plattentektonische Entwicklung des Südostpazifiks. - 2.4. Überblick über den Werdegang der südhemisphärischen Ozeangebiete und den Ablauf des Gondwanazerfalls. - 3. Zur Bedeutung der Krustenentwicklung für Paläoozeanlogie und Paläoklimatologie. - 3.1. Einige Kennzeichen der ozeanologischen Situation in den antarktischen Meeresgebieten. - 3.2. Kriterien für Veränderungen der paläoozeanologischen und paläoklimatologischen Verhältnisse im Hinblick auf die paläotektonische Interpretation. - 3.3. Abriß der paläoozeanologisch-paläoklimatologischen Entwicklung im Känozoikum und mögliche Zusammenhänge mit dem tektonischen Geschehen. - 4. Zusammenfassung. - 5. Literaturverzeichnis. - 6. Abbildungsverzeichnis. -
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  • 39
    Monograph available for loan
    Monograph available for loan
    Dortmund : Dortmunder Vertrieb für Bau- und Planungsliteratur
    Call number: IASS 16.90456
    Description / Table of Contents: 〉〉Planung〈〈 war einst ein Schlüsselwort, das die rationale Gestaltung von Raum und Gesellschaft verhieß. Später geriet das Wort in das Assoziationsumfeld von Bevormundung, Bürokratie und Ineffizienz. Heute sieht man - was die 〉〉Planung〈〈 für Städte und Regionen betrifft - klarer: Räumliche Entwicklung resultiert aus dem Handeln vieler.
    Type of Medium: Monograph available for loan
    Pages: 674 S , Ill., graph. Darst
    ISBN: 3929797933
    Series Statement: Edition Stadt-Entwicklung
    Language: German
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  • 40
    Call number: M 17.90756
    Type of Medium: Monograph available for loan
    Pages: 149 S , Ill., Tab
    ISBN: 9789630616744
    Language: English
    Note: Amsterdam, Univ., Diss., 2007
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  • 41
    Call number: M 17.90768
    Description / Table of Contents: Es ist von grossem Interesse, den fundamentalen physikalischen Prozess zu isolieren, der die beobachteten Eigenschaften von Seismizitätsmustern erklärt. Wir präsentieren vier numerische Studien, die die Effektivität von Fluiden und der strukturellen Heterogenität von Verwerfungszonen im Hinblick auf die Genese von Erdbebenkomplexität untersuchen. Die dreidimensionalen, kontinuierlichen Modelle werden von der empirischen `rate and state' Beschreibung der Entwicklung des Reibungskoeffizienten bestimmt, und|vom jeweiligen Problem abhängig|von elasto-hydraulischen Wechselwirkungen oder heterogenen Reibungsverhältnissen auf der zweidimensionalen Verwerfungszone. Zu Beginn wird gezeigt, dass für bestimmte Bereiche von hydraulisch relevanten Parametern der Prozess des `dilatant hardening', d. h. Verhärtungen aufgrund der Erweiterung des Porenraumes, ausreicht, um beschleunigende Instabilitäten zu stabilisieren, was zu heterogenen raum-zeitlichen Verschiebungen führt...
    Type of Medium: Monograph available for loan
    Pages: xi, 220 Seiten
    Edition: Online-Ausg.
    Language: English
    Note: Zürich, ETH, Dissertation, 2005
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  • 42
    Monograph available for loan
    Monograph available for loan
    Bath, UK : Parragon
    Call number: AWI P7-18-91900
    Description / Table of Contents: KNO: Die Polarregionen, Arktis und Antarktis, gelten als die letzte echte Wildnis der Erde. Sie werden beherrscht von Eis, Schnee, eisigen Winden und eiskaltem Meer. Nur wenige Menschen haben je ihren Fuss in diese Gebiete gesetzt, sodass sich die Natur hier weitgehend ohne menschlichen Einfluss entfaltet. Dieses prachtvoll bebilderte Buch führt Sie auf eine Reise ans Ende der Welt
    Type of Medium: Monograph available for loan
    Pages: 256 Seiten , Illustrationen , 32 cm
    ISBN: 9781407509457 (Pp.)
    Language: German
    Note: Inhalt: Die Polarregionen. - Die Arktis. - Die arktische Landschaft. - Leben in der Arktis. - Menschen in der Arktis. - Leben im Wasser. - Leben an Land. - Arktische Vögel. - Die Antarktis. - Die antarktische Landschaft. - Ein Kontinent für die Wissenschaft. - Die Erforschung der Antarktis. - Leben im Meer. - Vögel in der Antarktis. - Polarregionen im Vergleich. - Fakten der Polarregionen. - Register.
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  • 43
    Monograph available for loan
    Monograph available for loan
    Braunschweig : Vieweg
    Call number: IASS 18.91911
    Type of Medium: Monograph available for loan
    Pages: 241 S. , graph. Darst. , 23 cm
    ISBN: 3528073039 (gbd.) , 3528073144 (kart.) , 9783528073145
    Series Statement: Wissenschaftstheorie, Wissenschaft und Philosophie 4
    Uniform Title: Sémantique structurale 〈dt.〉
    Language: German
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  • 44
    Call number: AWI G6-18-91903
    Type of Medium: Series available for loan
    Pages: 93 Seiten , Illustrationen
    Series Statement: Schriftenreihe Anwendung von Isotopen und Kernstrahlungen in Wissenschaft und Technik 5
    Language: German
    Note: Inhaltsverzeichnis: 1. Einleitung. - 2. Grundlagen der 15N-Tracertechnik. - 3. Versuchsplanung und -auswertung. - 3.1. Begriffe und Symbole. - 3.2. Formeln und Definitionen für die Berechnung der in der 15N-Tracertechnik benötigten Größen. - 3.2.1. Relative 15N-Häufigkeit. - 3.2.2. Molmasse. - 3.2.3. Stickstoffgehalt. - 3.2.4. N-Masse. - 3.2.5. Stoffmenge. - 3.2.6. N-Menge. - 3.2.7. 15N- bzw. 14N-Menge. - 3.2.8. 15N-Masse. - 3.2.9. 15N-Exzeßmasse. - 3.2.10. Titrimetrische Neutralisationsanalysen. - 3.2.11. Spektren-Auswertung der 15N-Messung. - 3.3. Untersuchung statischer Eigenschaften biologischer Systeme (statische Isotopenverdünnungsanalyse). - 3.4. Untersuchung des dynamischen Verhaltens biologischer Systeme. - 3.4.1. Modellierung von Tracerprozessen. - 3.4.2. Theoretische Grundlagen der mathematischen Modellierung. - 3.4.3. Modell des Stickstoff-Stoffwechsels im Ackerboden. - 3.5. Berechnungsbeispiele zu den Abschnitten 3.2. bis 3.4. - 3.5.1. Isotopenstöchiometrie. - 3.5.2. Titrimetrische Analyse einer 15N-markierten Substanz. - 3.5.3. Isotopenverdünnungsanalyse. - 3.5.4. Tracerkinetik. - 3.6. Literatur. - 4. Methodik der Probenaufbereitung und Isotopenanalytik. - 4.1. Aufarbeitung des Probenmaterials. - 4.2. Chemische Aufbereitung. - 4.3. Probenchemie. - 4.3.1. Dumas-Methode. - 4.3.2. Hypobromit-Methode. - 4.3.3. Sonstige Methoden. - 4.4. Isotopenanalytik. - 4.4.1. Emissionsspektrometrische 15N-Analytik. - 4.4.1.1. Isotopenanalytik mit dem 15N-Analysator NOI-5. - 4.4.1.2. Isotopenanalytik mit dem automatischen 15N-Analysator ISONITROMAT 5200. - 4.4.2. Massenspektrometrische 15N-Isotopenanalyse. - 4.4.3. Methodenvergleich. - 4.5. Fehlerquellen in der 15N-Analytik. - 4.6. Weitere Analysenmethoden in der 15N-Tracertechnik. - 4.6.1. NMR-Spektroskopie. - 4.6.2. Kombinierte Gaschromatographie-Massenspektroskopie und Hochdruck-Flüssigkeitschromatographie-Massenspektroskopie. - 4.7. Literatur. - 5. 15N-Anwendung in der Biochemie. - 5.1. Die biologische Stickstoff-Fixierung. - 5.2. Pflanzenphysiologie. - 5.3. Tierphysiologie. - 5.4. Literatur. - 6. 15N-Anwendung in der landwirtschaftlichen Forschung. - 6.1. Allgemeines. - 6.2. Die Anwendung 15N-markierter Düngemittel zum Studium des N-Umsatzes im Boden. - 6.2.1. Stickstoff-Festlegung. - 6.2.1.1. Ammoniumfixierung und Sorption an organischen Bodenbestandteilen. - 6.2.1.2. Stickstoff-Festlegung in organischen N-Verbindungen. - 6.2.2. Verfügbarkeit und Mobilisierung von Stickstoff. - 6.2.3. Stickstoff-Transformation und Dynamik des Stickstoff-Umsatzes. - 6.2.3.1. Mineralisierung und Immobilisierung. - 6.2.3 .2. Humifizierung. - 6.2.3.3. Nitritzersetzung im Boden. - 6.2.4. Ausnutzung des Düngemittel-Stickstoffs und Stickstoff-Verluste (N-Bilanz). - 6.2.5. Migration von Düngemittel-Stickstoff im Boden. - 6.2.6. Nachwirkungseffekt. - 6.2.7. Forstwirtschaftliche Untersuchungen mit 15N. - 6.3. Die Anwendung 15N-markierter Düngemittel zum Studium des Stickstoff-Umsatzes in der Pflanze. - 6.3.1. Die Aufnahme des Stickstoffs und ihre Beeinflussung durch N-Form, Applikationsart, Pflanzenart, Ernährungszustand, Spurenelementversorgung, Temperatur und Zusammensetzung des Nährsubstrates (Stickstoff-Fixierung). - 6.3.2. Die Ausnutzung des Düngemittel-Stickstoffs durch die Pflanze. - 6.3.3. Verteilung des Dünge-Stickstoffs in der Pflanze. - 6.3.4. Stoffwechsel des gedüngten Stickstoffs. - 6.4. Die Untersuchung des Stickstoff-Umsatzes im Tier mittels 15N. - 6.4.1. Eiweißstoffwechsel. - 6.4.1.1. Proteinverdaulichkeit, Stickstoff-Verweilzeitstudien und Aminosäure-Resorptionskinetik. - 6.4.1.2. Biosynthese von Eiproteinen. - 6.4.1.3. Metabolismus von NPN-Verbindungen bei Wiederkäuern. - 6.5. Literatur. - 7. 15N-Anwendung in der medizinischen Forschung. - 7.1. Besonderheiten der Anwendung stabiler Isotope in der Humanmedizin. - 7.2. Biochemie des Intermediärstoffwechsels. - 7.2.1. Anatomische Lokalisation von Stoffwechselprozessen. - 7.2.2. Aufklärung von Stoffwechselwegen durch Erfassung der Stoffwechselzwischen- oder Endprodukte. - 7.2.3. Bestimmung der mittleren Verweilzeit bzw. Lebensdauer von Verbindungen. - 7.2.4. Bestimmung der Größe von Stoffwechsel-Pools. - 7.3. Gastroenterologie. - 7.4. Pädiatrie. - 7.5. Ernährung. - 7.6. Beiträge zur Diagnostik und Ursachenforschung von Krankheiten und zu pharmakologischen Fragestellungen. - 7.7. Literatur.
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  • 45
    Series available for loan
    Series available for loan
    Leipzig : Akademie der Wissenschaften der DDR, Zentralinstitut für Isotopen- und Strahlenforschung
    Associated volumes
    Call number: ZSP-980-90
    In: ZfI-Mitteilungen, Nr. 90
    Type of Medium: Series available for loan
    Pages: 358 Seiten , Illustrationen
    ISSN: 0323-8776
    Series Statement: ZfI-Mitteilungen 90
    Language: German
    Note: Inhaltsverzeichnis: 1. Wissenschaftliche Beiträge. - (01) Isotopen- und elementgeochemische sowie radiogeochronologische Untersuchungen an der Zinnlagerstätte Ehrenfriedersdorf (Beste wissenschaftliche Arbeit des ZfI 1983 / Autorenkollektiv. - (02) Einsatz ionisationsgasanalytischer Methoden an der Mikroelektronik (Beste wissenschaftlich-technische Arbeit des ZfI 1983) / Autorenkollektiv. - (03) Zur Geschichte der künstlichen Radioaktivität / H. Koch. - (04) 50 Jahre künstliche Radioaktivität / G. Vormum. - (05) Frédéric und Irène Joliot-Curie - Biographische Skizze / K.-P- Dostal. - 2. Institutskolloquien. - 3. Patente. - 4. Veröffentlichungen und Vorträge. - 5. Register. - 5.1. Namensregister. - 5.2. Deskriptorenregister. - 6. Verzeichnis aller bisher erschienenen Hefte der ZfI-Mitteilungen. - 6.1. Titel der bis 1982 erschienenen Hefte 1-61 und Sonder-Nr. 1. - 6.2. Inhaltsverzeichnisse der im Jahre 1983 erschienenen Hefte 62-82. - 6.3. 1984 bisher erschienene Hefte. - 7. Verzeichnis aller bisher erschienenen Preprints.
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  • 46
    Series available for loan
    Series available for loan
    Leipzig : Akademie der Wissenschaften der DDR, Zentralinstitut für Isotopen- und Strahlenforschung
    Associated volumes
    Call number: ZSP-980-95
    In: ZfI-Mitteilungen, Nr. 95
    Type of Medium: Series available for loan
    Pages: VI, 150 Seiten , Illustrationen
    Series Statement: ZfI-Mitteilungen 95
    Language: German
    Note: Inhaltsverzeichnis: 1. Einleitung. - 1.1. Ausgangssituation. - 1.2. Bestrahlungsanlagen als Basis strahlenchemischer Untersuchungen und Verfahren. - 1.3. Anforderungen der Praxis an ein Programmsystem zur Berechnung von Strahlenfeldern in γ-Bestrahlungsanlagen. - 2. Ableitung des Grundmodells. - 2.1. Ausgangspunkt. - 2.1.1. Punktförmige Strahlenquelle. - 2.1.2. Linienförmige Strahlenquelle. - 2.1.3. Anordnung mehrerer Strahlenquellen. - 2.2. Zugrundegelegte Struktur von Bestrahlungsanlage und Strahlenfeld. - 2.3. Geometrische Zusammenhänge. - 2.4. Berechnung der Bestrahlungsdosisleistung in einem Feldpunkt. - 3. Das Programm DOSKMF2. - 3.1. Übersicht. - 3.2. Eingabe. - 3.3. Aktivitätskorrektur. - 3.4. Auswahl der Feldpunkte. - 3.4.1. Zylinderkoordinaten. - 3.4.2. Quaderkoordinaten. - 3.4.3. Auswahl von Einzelpunkten. - 3.4.4. Variation der Rohrpositionen 3.5. Zyklusgestaltung, statistische Maßzahlen und Aufbereitung für graphische Ausgabe. - 3.5.1. Zylinderkoordinaten. - 3.5.2 Quaderkoordinaten. - 3.6. Programmtechnische Lösung. - 3.6.1. Struktur des Programms. - 3.6.2. Aufruf. - 3.6.3. Einschränkungen und programmtechnische Hinweise. - 3.7. Ein Demonstrationsbeispiel. - 3.7.1. Aufgabenstellung. - 3.7.2. Festlegung der Parameter. - 3.7.3. Resultate. - 4. Nutzung der graphischen Ausgabe. - 4.1. Ausgangspunkt und Voraussetzungen. - 4.2. Das Programm ISORADL. - 4.2.1. Übersicht. - 4.2.2. Die Programme ISOQ, ISOA. - 4.2.3. Problemlösung. - 4.2.4. Programmtechnische Lösung. - 4.2.5. Demonstrationsbeispiel. - 5. Einsatzmöglichkeiten des Programmpaketes. - 5.1. Übersicht. - 5.2. Prüfen von Voraussetzungen. - 5.3. Wechselwirkung Programmpaket-Realität. - 6. Berechnung und Modifikation von Strahlenfeldern bestehender Gammabestrahlungsanlagen. - 6.1. Technische Voraussetzungen. - 6.2. Prüfen der Anwendungsbedingungen für den Programmeinsatz. - 6.3. Durchgeführte Berechnungen. - 6.3.1. Aufklärung der Struktur des vorliegenden Strahlenfeldes. - 6.3.2. Darstellung typischer Bestrahlungskonfigurationen. - 6.3.2.1. Bestrahlung im Käfig. - 6.3.2.2. Bestrahlung flächenartiger Objekte. - 6.4. Berechnungen für eine neue Strahlenquellenkonfiguration. - 6.5. Schlußfolgerungen. - 7. Einsatz des Programmpaketes als Projektierungshilfsmittel. - 7.1. Nutzung für die Pilotanlage des PCK Bitterfeld. - 7.1.1. Vorbemerkungen. - 7.1.2. Berechnungen für Modellreaktoren. - 7.1.3. Auslegung eines Reaktors für die Pilotanlage. - 7.1.4. Kontrollrechnungen zur Dosimetrie des gefertigten Reaktors. - 7.2. Nutzung für eine industrielle Anlage des VEB PROWIKO Schönebeck. - 7.2.1. Vorbemerkungen. - 7.2.2. Entwurf eines Modellreaktors. - 7.2.3. Schlußfolgerungen für den Entwurf einer industriellen Anlage. - 8. Einige Gedanken zur Wechselwirkung Strahlenfeldberechnung - Dosimetrie am Beispiel zweier umschlossener γ-Bestrahlungsanlagen. - 8.1. Vorbemerkungen. - 8.2. Beschreibung der für den Vergleich wesentlichen Anlagenparameter. - 8.3. Durchgeführte dosimetrische Messungen. - 8.4. Durchgeführte Strahlenfeldberechnungen. - 8.5. Diskussion der Ergebnisse. - 9. Erweiterte Nutzungsmöglichkeiten und Ausblick. - 10. Zusammenfassung. - Literaturverzeichnis. - Verzeichnis der Abbildungen. - Verzeichnis der Tabellen.
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  • 47
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/6
    In: CRREL Report, 83-6
    Description / Table of Contents: During the austral summers of 1976-77 and 1978-79, several ice cores were taken from the McMurdo Ice Shelf brine zone to investigate its thermal, physical and chemical properties. This brine zone consists of a series of super-imposed brine layers (waves) that originate at the seaward edge of the ice shelf and migrate at various rates, depending upon their age and position in the ice shelf. The brine in these layers becomes increasingly concentrated as the waves migrate inland through the permeable ice shelf firn. Chemical analyses of brine samples from the youngest (uppermost) brine wave show that it contains sea salts in normal seawater proportions. Further inland, deeper and older brine layers, though highly saline (S 〉 200 ‰), are severely depleted in SO2-4 with the SO2-4/Na+ ratio being an order of magnitude less than that of normal seawater. Analyses of Na+, K+, Ca2+, Mg2+, SO2-4 and CI-, together with solubility and temperature considerations, show that the sulfate depletion is due to selective precipitation of mirabilite, Na2SO4*10H2O. The location of the inland boundary of brine penetration is closely related to the depth at which the brine en-counters the firn/ice transition. However, a small but measurable migration of brine is still occurring in otherwise impermeable ice; this is attributed to eutectic dissolution of the ice by concentrated brine as it moves into deeper and warmer parts of the McMurdo Ice Shelf.
    Type of Medium: Series available for loan
    Pages: iii, 16 Seiten , Illustrationen
    Series Statement: CRREL Report 83-6
    Language: English
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  • 48
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/4
    In: CRREL Report, 83-4
    Description / Table of Contents: Measurements and analysis of seasonal ice growth and decay on Post Pond, New Hampshire, for the period 1973-1982 are presented. Observations included ice thickness measurements, examination of the various ice types contributing to the ice cover, and measurements of meteorological parameters for correlation with and modeling of the ice growth process. The overall nature of ice growth and decay (ice loss) on the Post Pond has been ascertained, the seasonal variability in the timing of freeze-up and ice-out and the duration of the ice cover have been determined, and the relationship of ice growth to freezing-degree-day (deg C) records evaluated on the basis of a Stefan conduction equation modified to deal with ice sheets covered with or free of snow. Ice growth occurs predominantly by the direct freezing of lake water, but snow ice may compose as much as 50% of the ice cover in winters with higher than average snowfall. Freeze-up leading to the establishment of a stable ice cover occurs during the 4-week period from the end of November to the end of December. Maximum seasonal ice thicknesses were from 45 to 67 cm and are generally attained during the first two weeks of March; ice-out, marking the final disappearance of ice from Post Pond, usually occurs by the third week of April. The overall rate of the ice loss is three to four times that of ice growth, and is dominated initially by melting from the top. As much as 50% of the ice may be lost in this way before the onset of any bottom melting. Final dissipation of the ice cover is usually expedited by candling resulting from preferential melting and disintegration of the ice at crystal boundaries.
    Type of Medium: Series available for loan
    Pages: iv, 30 Seiten , Illustrationen
    Series Statement: CRREL Report 83-4
    Language: English
    Note: CONTENTS Abstract Preface Introduction Location of study Study methods Ice thickness Ice-cover composition Surface air temperatures Freeze-up and ice-out characteristics Results and discussion Ice-growth record Freezing-degree-day records Ice-growth predictions Summary and conclusions Literature cited Appendix A: Ice-growth records Appendix B: Measured and computed ice-growth curves
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  • 49
    Call number: ZSP-201-83/7
    In: CRREL Report, 83-7
    Description / Table of Contents: Peak power generation with hydropower creates tailwater flow conditions characterized by high and low flows with abrupt transitions between these states. Flows occurring in tailwaters typically form sharp-fronted, large-amplitude waves of relatively short period. An understanding of the mechanics of downstream propagation of these waves is important both for direct application in studies of the tailwater and because of the similarity of these waves to those following a dam break. An analysis of the dynamic equations of open channel flow is used to quantify the relative importance of flow wave convection, diffusion and dispersion in rivers. The relative importance of each process is re­lated to the relative magnitude of terms in the dynamic equations, providing a physical basis for model formulation. A one-dimensional diffusion wave flow routing model, modified for tailwaters, simulates the important physical pro­cesses affecting the flow and is straightforward to apply. The model is based upon a numerical solution of the kine­matic wave equation. The “modified equation,” Hirt, and von Neumann analyses are used to gain insight into the stability and dissipative and dispersive behavior of the numerical solution, and results of these analyses are compared. A set of linear routings is used to demonstrate the dissipative and dispersive behavior predicted by the analyses and to verify the accuracy of an expression that quantifies the numerical diffusion of the model. The analyses provide a basis for selection of numerical parameters for model applications. The capability and accuracy of the model are enhanced when physical wave diffusion is balanced by numerical diffusion in the model. Maintaining the diffusion balance re­quires that the time derivative weighting parameter 0 be variable and in some instances negative. Though some amount of phase error is introduced, negative 0 values have no adverse effect upon model stability. Field studies were con­ducted to demonstrate the benefits of careful model development and analysis, and to verify the diffusion wave model for rapidly varying tailwater flow. The bed slope and roughness characteristics of the field study reaches (below Apalachia and Norris Dams) differ greatly, spanning those of a large number of rivers of practical interest. The accurate simulation of flow in both of these tailwaters attests to the soundness of both the physical basis of the model and the numerical solution technique. The field studies confirm, for the extreme case of rapidly varying flow in a mildly sloped river, that inertia has a negligible effect upon unsteady flow waves at low Froude numbers. Additionally, these studies verify that diffusion of short-period waves in rivers is generally significant.
    Type of Medium: Series available for loan
    Pages: vi, 41 Seiten , Illustrationen
    Series Statement: CRREL Report 83-7
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Physical diffusion and dispersion in open channel flow Modeling approach Description of the diffusion wave flow routing model Analysis of the numerical model Modified equation and Hirt analyses of diffusion wave model von Neumann analysis of the diffusion wave model Linear case studies Accuracy considerations of the numerical solution Field studies Apalachia Dam tailwater Norris Dam tailwater Conclusions Literature cited
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  • 50
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/5
    In: CRREL Report, 83-5
    Description / Table of Contents: This report presents the results of dynamic ice-structure interaction model tests conducted at the CRREL Ice Engineering Facility. A flexible, single-pile, bottom-founded offshore structure was simulated by a test pile with about a one-to-ten scale ratio. Urea (instead of sodium chloride) was used as dopant to scale down the ice properties, resulting in good model ice properties. Six ice fields were frozen and 18 tests carried out. In all cases distinctive dynamic ice structure interaction vibrations appeared, from which abundant data were collected. In tests with linear ice velocity sweep, sawtooth-shaped ice force fluctuations occurred first. With increasing velocity the natural modes of the test pile were excited, and shifts from one mode to another occurred. The maximum ice force values appeared mostly with low loading rates, but high forces appeared random'y at high ice velocities. As a general trend, ice force maximums, averages and standard deviations decreased with increasing ice velocities. The aspect ratio effect of the ice force in continuous crushing follows the same dependence as in static loadings. The frequency of observed ice forces is strongly dominated by the natural modes of the structure. Dynamically unstable natural modes tend to make the developing ice force frequencies the same as the natural frequencies. Otherwise the resulting frequency depends directly on structural stiffness and ice velocity and inversely on the ice force range. During vibrations the displacement rates of the structure overcome the velocity of ice, making low loading rates and hence high ice forces possible. During crushing, ice induces both positive and negative damping.
    Type of Medium: Series available for loan
    Pages: iv, 53 Seiten , Illustrationen
    Series Statement: CRREL Report 83-5
    Language: English
    Note: CONTENTS Abstract Preface Introduction Test arrangements Ice properties Crushing patterns Maximum ice force vs velocity Dynamic aspect ratio effect and crushing strength Measured ice force frequencies Calculated ice force frequencies Accelerations, velocities and displacements Damping Ice-induced negative damping Limit cycles Buckling load Conclusions Literature cited
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  • 51
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/2
    In: CRREL Report, 83-2
    Description / Table of Contents: A numerical model of rime ice accretion on an arbitrary two-dimensional airfoil is presented. The physics of the model are described and results are presented that demonstrate, by comparison with other theoretical data and experimental data, that the model predictions are believable. Results are also presented that illustrate the capability of the model to handle time-dependent rime ice accretion, taking into account the feedback between the ice accretion and the airflow and droplet trajectory fields.
    Type of Medium: Series available for loan
    Pages: vi, 81 Seiten , Illustrationen
    Series Statement: CRREL Report 83-2
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Methodology Potential flow around an arbitrary airfoil Incompressible velocity field Droplet trajectory equation Computational procedure for trajectories Determining the point of impact Calculation of collision efficiencies Accreting an ice layer Determining the accuracy of the flow field Determining the accuracy of the trajectories Results and discussion Comparing results with and without the history term Collision efficiency of NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 8° attack angle Time-dependent accretion on NACA 0015 airfoil at 0° attack angle Conclusions and recommendations Literature cited Appendix A : Sample input Appendix B: Sample output Appendix C : Program listing
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  • 52
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/1
    In: CRREL Report, 83-1
    Description / Table of Contents: Roof snow load case studies gathered throughout the United States over a three-year period are analyzed. The objective of the analysis is to determine a relationship between the snow load on the ground and the corresponding uniform snow load on flat and sloped roofs. The main parameters considered are the thermal characteristics of the roof, the roof slope and the exposure of the structure. Exposure has the strongest effect on the ratio of ground to roof snow loads. Comparisons are made with existing and proposed building codes and standards.
    Type of Medium: Series available for loan
    Pages: iv, 47 Seiten , Illustrationen
    Series Statement: CRREL Report 83-1
    Language: English
    Note: CONTENTS Abstract Preface Metric conversion table Introduction Data base Conversion factor Ground load effects Exposure effects Thermal effects Slope effects Expected value relationship Comparison with existing codes and standards Comparison with relationships proposed in new ANSI standard Summary and conclusions Literature cited Appendix A. Roof snow load case history reports Appendix B. Roofs in the snow load case study data base Appendix C. Ground and roof snow load data Appendix D. Conversion factors from the 1982 ANSI standard
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  • 53
    Monograph available for loan
    Monograph available for loan
    Leipzig : B.G. Teubner Verlagsgesellschaft
    Call number: 3204
    Type of Medium: Monograph available for loan
    Pages: XII, 382 Seiten , Illustrationen
    Uniform Title: Teorija jadernych reaktorov na teplovych nejtronach dt.
    Language: German
    Note: Aus dem Russ. übers.
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  • 54
    Monograph available for loan
    Monograph available for loan
    Geneva : WMO
    Associated volumes
    Call number: MOP Per 800(423)
    In: WMO
    In: Technical note
    Type of Medium: Monograph available for loan
    Pages: 40 S.
    Series Statement: WMO / World Meteorological Organization 423
    Note: Foreword ν --- Summary (English, French, Russian, Spanish) vii --- Chapter 1—Rice cultivation 1 --- 1.1 Distribution 1 --- 1.2 Varieties 3 --- 1.3 Soils 3 --- 1.4 Cultural techniques 3 --- Chapter 2—Growth and development S --- 2.1 Pattern 5 --- 2.2 Vegetative phase 5 --- 2.3 Reproductive phase 5 --- 2.4 Ripening phase 5 --- 2.5 Yield 6 --- Chapter 3—Environmental requirements 8 --- 3.1 Water 8 --- 3.2 Photoperiod 9 --- 3.3 Temperature 11 --- 3.4 Solar radiation 13 --- 3.5 Wind 13 --- 3.6 Atmospheric water vapour 13 --- Chapter 4—Forecasting the yield of paddy rice 15 --- 4.1 Importance 15 --- 4.2 Methods 15 --- 4.3 Models for rice yield in India 16 --- Chapter 5—Irrigation 19 --- 5.1 Effective rainfall 19 --- 5.2 Evapotranspiration 19 --- 5.3 Water-budget calculations 20 --- Chapter 6—Climatic zonation for rice in monsoon regions 24 --- 6.1 Information source 24 --- 6.2 Rainfall patterns in South-East Asia 24 --- 6.3 Climatic zones 24 --- Chapter 7—Bioclimatic condition· in rice-producing areas 30 --- 7.1 Survey data 30 --- 7.2 Climatic factors and variations in yield 32 --- 7.3 Climatic limits to regional yield 35 --- 7.4 Conclusions 36 --- Acknowledgements 36 --- References and suggested reading 37
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  • 55
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/17
    In: CRREL Report, 84-17
    Description / Table of Contents: VHF-band radiowave short pulses were transmitted within the permafrost tunnel at Fox, Alaska, over distances between 2.2 and 10.5 m. The propagation medium was a frozen silt containing both disseminated and massive ice with temperatures varying from -7°C near the transmitter to probably -2 C near the center of the tunnel overburden. The short pulses underwent practically no dispersion in the coldest zones but did disperse and refract through the warmer overburden, as suggested by calculations of the effective dielectric constant. Most significantly the measured frequency content decreased as the effective dielectric constant increased. The results indicate that deep, cross-borehole pulse transmissions over distances greater than 10 m might be possible, especially when the ground is no warmer than -4°C. The information thus pined could be used for identifying major subsurface variations, including ground ice features.
    Type of Medium: Series available for loan
    Pages: ii, 14 Seiten , Illustrationen
    Series Statement: CRREL Report 84-17
    Language: English
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  • 56
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    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/18
    In: CRREL Report, 84-18
    Description / Table of Contents: This report investigates the influences of turbulence and water temperature on frazil ice formation. The rate and thequantity of frazil ice formed in a specified volume of supercooled water increase with both increasing turbulence inten-sitv and decreasing water temperature. The influence of turbulence intensity on the rate of frazil ice formation, how-ever. is more pronounced for larger initial supercooling. The turbulence characteristics of a flow affect the rate offrazil ice formation by governing the temperature to which the flow can be supercooled, by influencing heat transferfrom the frazil ice to surrounding water, and by promoting collision nucleation, particle and floc rupture and increasingthe number of nucleation sites. larger frazil ice particles formed in water supercooled to lower temperatures. The par-ticles usually were disks, with diameters several orders greater than their thickness. Particle size generally decreased with increasing turbulence intensity. This report develops an analytical model, in which the rate of frazil ice formation isrelated to temperature rise of a turbulent volume of water from the release of latent heat of fusion of liquid water toice. Experiments conducted in a turbulence jar with a heated, vertically oscillating grid served both to guide and tocalibrate thanalytical'model as well as to afford insights into frazil ice formation. The formation of frazil ice wasstudied for Vemperatures of supercooled water ranging from -0.9° to -0.050°C.
    Type of Medium: Series available for loan
    Pages: vi, 50 Seiten , Illustrationen
    Series Statement: CRREL Report 84-18
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Background Scope of study Literature review Introduction Incipient formation of frazil ice Particle size and evolution of frazil ice Influences of turbulence and water temperature on the rate of frazil ice formation Conclusions Analytical model Introduction Elements of heat transfer Elements of turbulence Experimentation Experimental apparatus Experimental procedure Results Introduction Nucleation of frazil ice Influences of turbulence on frazil ice formation Water temperature Influences of water temperature and turbulence on the concentration of frazil ice Frazil ice particle shape and size Conclusions Literature cited Appendix A: Preliminary frazil ice experiments Flume experiments Couette-flow Appendix B: Listing of computer program for calculation of frazil ice formation Appendix C: Water temperature rise attributable to frazil ice formation as computed usingthe analytical model .
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  • 57
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/15
    In: CRREL Report, 84-15
    Description / Table of Contents: Measurements of meltwater pH from annual layers of South Pole firn and ice samples ranging in age from 40 to 2000 years B.P. show that precipitation at this remote site has a higher natural acidity than that expected from atmospheric equilibrium with CO2. The average pH of deaerated (CO2-free) samples was 5.64 + or - 0.08, while air-equilibrated samples averaged 5.37 + or - 0.008, a pH that is about a factor of two more acidic than the expected background pH of 5.65. The observed 'excess' acidity can be accounted for by natural SO4(2)- and NO(3)- levels in the samples probably originating from non-anthropogenic H2SO4 and HNO3. Because of the presence of these naturally occurring acids in South Pole precipitation, a pH of 5.4 is considered a more representative baseline reference pH for acid precipitation studies.
    Type of Medium: Series available for loan
    Pages: ii, 12 Seiten , Illustrationen
    Series Statement: CRREL Report 84-15
    Language: English
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  • 58
    Series available for loan
    Series available for loan
    Washington, DC. : US Gov. Print. Off.
    Associated volumes
    Call number: MOP Per 705(10)
    In: Federal meteorological handbook, 10
    Type of Medium: Series available for loan
    Series Statement: Federal meteorological handbook 19
    Language: English
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  • 59
    Monograph available for loan
    Monograph available for loan
    Berlin [u.a.] : Springer
    Call number: IASS 17.91092
    Type of Medium: Monograph available for loan
    Pages: VI, 198 S
    ISBN: 354009668X , 038709668X , 9783540096689 , 9783642618390
    Language: German
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  • 60
    Monograph available for loan
    Monograph available for loan
    Leningrad : Gidrometeorologičeskoe Izdatel'stvo
    Call number: MOP 40665 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 146 Seiten , 3 Karten
    Language: Russian
    Note: In kyrillischer Schrift
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  • 61
    Call number: ZSP-799-370
    In: Trudy Ordena Lenina Arktičeskogo i Antarktičeskogo Naučno-Issledovatelʹskogo Instituta, Tom 370
    Type of Medium: Series available for loan
    Pages: 163 Seiten , Illustrationen
    Series Statement: Trudy Ordena Lenina Arktičeskogo i Antarktičeskogo Naučno-Issledovatelʹskogo Instituta 370
    Language: Russian
    Note: In kyrillischer Schrift
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  • 62
    Monograph available for loan
    Monograph available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute for Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-93042-2
    In: Interregional Training Course on Radiochemistry, [Supplement]
    Type of Medium: Monograph available for loan
    Pages: 88 Seiten , Illustrationen
    Language: English
    Note: Contents Manual 2.2 The relative measurement of aktivity Lectures 1.3 Statistics / H. Baumbach 2.2 Sealed sources / K. Vormum 2.4 Energy dispersive x-ray fluorescence analysis / H.-K. Bothe 3.1 The use of carriers / H. Koch 4.3 Autoradiography / K. Freyer 6.1 Radiometric methods in environmental control / H.-J. Große
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  • 63
    Call number: PIK N 106-19-93045
    Type of Medium: Monograph available for loan
    Pages: XI, 390 Seiten , Diagramme
    Series Statement: Lehrbuch der theoretischen Physik L. D. Landau; E. M. Lifschitz. In dt. Sprache hrsg. von Gerhard Heber ; Bd. 9
    Language: German
    Location: A 18 - must be ordered
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  • 64
    Monograph available for loan
    Monograph available for loan
    Leipzig : Academy of Sciences of the GDR, Central Institute for Isotope and Radiation Research
    Associated volumes
    Call number: AWI G6-19-93042-1
    In: Interregional Training Course on Radiochemistry, [Hauptband]
    Type of Medium: Monograph available for loan
    Pages: 248 Seiten , Illustrationen
    Language: English
    Note: Contents Manual 1.1 Beta measurements 1.2 Measurement of the energy spectrum and range of α-radiation with semiconductor detectors 1.3 Error and statistical tests 1.4 Basic experiments of gamma spectroscopy 2.1 Determination of certain elements in sedimental atmospheric dust by x-ray fluorescence analysis 2.2 Calibration and efficiencies (see Supplement) 2.3 Thin-layer chromatographic separation and test of the purity of labelled compounds 2.4 Separation of Thorium-234 from Uranium-238 2.5 Separation of 137Ca/137mBa by precipitation and sorption 3.1 Determination of phosphate by simple isotope dilution analysis and determination of Zn in MgSO4 by substoichiometric isotope dilution analysis 3.2 The Szilard-Chalmers effect 3.3 Determination of the Ag content in slags by instrumental neutron activation analysis 4.1 Isotope exchange of Ethyl Iodide and Sodium Iodide 4.2 Liquid scintillation counting of Carbon-14 and Tritium 4.3 Autoradiography - Demonstration of Autoradiographic techniques Lectures 1.1 Fundamentals of radioactivity / G. K. Vormum 1.2 Interaction of nuclear radiation with matter / G. K. Vormum 1.4 Equations of radioactive decay / G. K. Vormum 1.5 Radiation detectors / M. Geisler 2.1 Radiation spectroscopy / M. Geisler 2.5 Handling of radioisotopes / G. K. Vormum 2.7 Behaviour of radionuclides in very low concentrations / H. Koch 3.6 Particle sources / J. W. Leonhardt 4.2 Tracers in chemical kinetics / J. Dermietzel 4.4 Liquid Scintillation Counting (LSC) / R. Trettin 5.1 Isotopic tracers in biology / H. Hübner 5.2 Low-level counting / R. Trettin 5.4 Basic concepts of radioimmunoassay (RIA) / G. K. Vormum 6.2 Radionuclide generators / R. Otto
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  • 65
    Monograph available for loan
    Monograph available for loan
    Frankfurt a. M. : Verlag Harri Deutsch
    Call number: PIK L 030-19-93047
    Type of Medium: Monograph available for loan
    Pages: 907, [32] Seiten , Illustrationen, Diagramme, Karten , 1 Faltbl.
    Edition: 3., verb. Aufl.
    ISBN: 3871440477
    Series Statement: Taschenbuch der physischen Geographie
    Language: German
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  • 66
    Call number: MOP 46138 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 196 Seiten , Illustrationen , 22 cm
    Language: Russian
    Note: In kyrillischer Schrift
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  • 67
    Monograph available for loan
    Monograph available for loan
    Alma-Ata : Izdatel'stvo "Nauka" Kazachskoj SSR
    Call number: MOP 46038 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 174 Seiten , Illustrationen , 21 cm
    Language: Russian
    Note: In kyrillischer Schrift
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  • 68
    Journal available for loan
    Journal available for loan
    Berlin : Akadmie Verlag
    Associated volumes
    Call number: Z 91.0105
    In: Zeitschrift für Geologische Wissenschaften
    Type of Medium: Journal available for loan
    Pages: S. 1-783
    ISSN: 0303-4534
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  • 69
    Call number: MOP 45174 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 55 Seiten , 20х28 см
    Language: Russian
    Note: In kyrillischer Schrift
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  • 70
    Monograph available for loan
    Monograph available for loan
    Stuttgart : Schweizerbart Science Publishers ; Volume 1, number 1 (1978)-
    Call number: M 18.91571
    Type of Medium: Monograph available for loan
    Pages: 134 Seiten
    ISSN: 2363-7196
    Series Statement: Global tectonics and metallogeny : special issue Vol. 10/2-4
    Classification:
    Tectonics
    Parallel Title: Erscheint auch als Global tectonics and metallogeny
    Language: English
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  • 71
    Call number: 21/SR 90.0917(6)
    In: Veröffentlichungen des Zentralinstituts Physik der Erde, Nr. 6
    Description / Table of Contents: Am Beispiel des Magnetits und Hämatits wird der Einfluß eines homogenen Magnetfeldes auf Wachstum und Orientierung untersucht. Die Kristalle wurden mit Hilfe chemischer Transportreaktionen bei 500 °с und Feldstärken von О - 4000 Ое gezüchtet. Magnetfelder dieser Stärke üben auf Wachstum und Orientierung beider Mineralien keinen Einfluß aus. Die experimentellen Ergebnisse werden im Hinblick auf das magnetische Verhalten kleiner Teilchen diskutiert. Dabei zeigt sich, daß die Kristallite bereits fest auf eine Unterlage (Quarzglastrager bzw. Ampullenwand) aufgewachsen sind, wenn sie noch superparamagnetisches Verhalten zeigen.
    Type of Medium: Series available for loan
    Pages: 52 Seiten , Illustrationen , 30 cm
    Edition: Als Manuskript gedruckt
    Series Statement: Veröffentlichungen des Zentralinstituts Physik der Erde 6
    Language: German
    Note: 1. Einleitung --- 2. Züchtungsmethode --- 2.1. Kristallzüchtung im geschlossenen System --- 3. Thermodynamische Abschätzung der Versuchsbedingungen --- 4. Apparative Voraussetzungen --- 4.1. Transportofen --- 4.2. Temperaturmessung und -kontrolle --- 4.3. Elektromagnet --- 5. Durchführung der Experimente --- 5.1. Apparative Voraussetzungen für die Untersuchung der Ausgangs- und Endsubstanzen --- 5.1.1. Goniometrische Vermessungen --- 5.1.2. Röntgenographische Untersuchungen --- 5.1.3. Mikroskopische Untersuchungen --- 6. Verwendete Substanzen --- 6.1. Magnetit --- 6.1.1. Vorbehandlung des Magnetits --- 6.2. Hämatit --- 6.2.1. Vorbehandlung des Hämatits --- 6.3. Magnetische Untersuchung beider Ausgangssubstanzen --- 7. Ergebnisse bei der Einkristallzüchtung von Magnetit und Hämatit im Magnetfeld --- 7.1. Wachstumsformen --- 7.2. Orientierung --- 8. Kristallographische und magnetische Eigenschaften von Magnetit und Hämatit --- 8.1. Kristallographische Struktur des Magnetits --- 8.2 . Kristallographische Struktur des Hämatits --- 8.3 . Magnetokristalline Anisotropie --- 8.3.1. Temperaturabhängigkeit der Kristallanisotropie --- 8.4. Übersicht über die wichtigsten strukturellen und magnetischen Eigenschaften von Magnetit und Hämatit --- 9. Magnetische Struktur und Eigenschaften kleiner Teilchen --- 9.1. Magnetisierungsvorgang --- 9.2. Anisotropie --- 9.3. Superparamagnetismus --- 9.3.1. Magnetisierungsvorgang in Superparamagnetika --- 10. Deutung der Ergebnisse --- 10.1. Abschätzung kritischer Teilchengrößen --- 10.1.1. Allgemeines zur kritischen Teilchengröße --- Berechnung kritischer Teilchengrößen von Magnetit --- Kritische Teilchengröße von Hämatit --- Berechnung der kritischen Teilchengröße von Hämatit --- Abschätzung und Vergleich der magnetischen und thermischen Energie --- Bildanhang --- Literaturverzeichnis.
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  • 72
    Series available for loan
    Series available for loan
    Associated volumes
    Call number: S 92.0083(1984)
    In: Erdbeben in der Bundesrepublik Deutschland
    Type of Medium: Series available for loan
    Pages: 57 Seiten
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  • 73
    Monograph available for loan
    Monograph available for loan
    Boston, Massachusetts : American Meteorological Society
    Call number: MOP 46673 / Mitte
    Type of Medium: Monograph available for loan
    Pages: XIV, 276 Seiten
    Language: English
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  • 74
    Call number: MOP 45042 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 296 Seiten , Illustrationen
    Series Statement: Akademie der Landwirtschaftswissenschaften der Deutschen Demokratischen Republik / Tagungsbericht Nr. 180
    Language: German
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  • 75
    Call number: AWI G6-18-91640
    Type of Medium: Dissertations
    Pages: 91 Seiten , Illusrationen, Grafiken, Tabellen
    Language: German
    Note: Tübingen, Univ., Diss., 1972 , INHALTSVERZEICHNIS: Zusammenfassung. - I. Einleitung. - II. Laborversuche zur Gesteinszersetzung mit Schwefelsäure. - 1. Ausgangsmaterial. - 2. Versuchsanordnung und Untersuchungsmethoden. - 3. Ergebnisse. - 4. Diskussion der Zersetzungsversuche. - 4.1 Geschlossenes System. - 4.1.1 Lösungen. - 4.1.2 Restliche Festsubstanzen. - 4.1.2.1 Hauptelemente. - 4.1.2.2 Spurenelemente. - 4.2 Offenes System. - III. Untersuchungen im rezenten Fumarolengebiet von Nea Kameni/Santorin/Griechenland. - 1. Gasanalysen und Exhalationsprodukte. - 2. Dünnschliffuntersuchungen an Material des Fumarolengebietes. - 3. Chemische Analysen. - 4. Diskussion der Ergebnisse. - 4.1 Wegfuhr von Elementen. - 4.2 Anreicherung von Ca. - 4.3 Anreicherung von Fe. - 4.4 Anreicherung von Al. - 4.5 Anreicherung von Al und Fe. - IV. Untersuchungen an fossilen Fumarolen im Lumaravi-Archangelo Komplex im Süden der Insel Thera/Santorin. - 1. Gebiet 1. - 1.1 Diskussion der Ergebnisse. - 2. Gebiete 2, 3 und 4. - 2.1 Diskussion der Ergebnisse. - V. Schlußfolgerungen. - VI. Literatur. - VII. Anhang. - 1. Probenbeschreibung von Nea Kameni. - 2, Probenbeschreibung vom Gebiet 1 südwestlich des Archangelo Berges auf der Landzunge von Akrotiri/Santorin. - 3. Probenbeschreibung von den Gebieten 2, 3 und 4 auf der Landzunge von Akrotiri/Santorin.
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  • 76
    Monograph available for loan
    Monograph available for loan
    Harpenden, Herts : VOCAT International Ltd.
    Call number: PIK B 190-18-91631
    Type of Medium: Monograph available for loan
    Pages: 216 Seiten , graph. Darst.
    ISBN: 9780956297518
    Language: English
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  • 77
    Monograph available for loan
    Monograph available for loan
    Paris : IEA Publ.
    Call number: PIK P 113-18-91630
    Type of Medium: Monograph available for loan
    Pages: 210 Seiten , graph. Darst., Kt
    ISBN: 9264109617
    Series Statement: Energy market experience
    Language: English
    Location: A 18 - must be ordered
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  • 78
    Call number: PIK P 113-18-91627
    Type of Medium: Monograph available for loan
    Pages: 558 Seiten , Ill., graph. Darst., Kt.
    ISBN: 926410951X
    Series Statement: Energy efficiency policy profiles
    Language: English
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  • 79
    Dissertations
    Dissertations
    Wien : Notring
    Call number: MOP 42825 / Mitte
    Type of Medium: Dissertations
    Pages: LXXX, 255 Seiten , Illustrationen
    Series Statement: Dissertationen der Universität Graz / Verband der Wissenschaftlichen Gesellschaften Österreichs 3
    Language: German
    Note: Dissertation, Graz, Universität Graz, 1967 , Inhaltsverzeichnis Vorwort I. Mittelwertsklimatologie und Witterungsklimatologie 1. Die Möglichkeiten zur Klassifizierung von Witterungstypen a. Mehrfachkombinationen b. Klassifizierung von Großwetterlagen 2. Die Eignung von Wetterlagenklassifikationen für eine Alienklimatologie II. Das Erscheinungsbild der ostalpinen Wetterlagen 1. Hochdrucklage 2. Zwischenhoch und schwacher Hochdruckeinfluß 3. Zonale Hochdruckbrücke 4. Hoch über Finnland 5. Hoch über Osteuropa 6. Südströmung 7. Südwestströmung 8. Westströmung 9. Nordwestströmung 10. Nordströmung 11. Tief über den Britischen Inseln 12. Tief im Südwesten 13. Tief über dem westlichen Mittelmeer 14. Tief südlich der Alpen 15. Tief auf der Zugstraße Adria-Polen 16. Tief über dem Kontinent (Mitteleuropa) 17. Meridionale Rinne III. Die geographische Verteilung der Witterung bei den ostalpinen Wetterlagen in der Steiermark 1. Allgemeines 2. Die Lage des Beobachtungsgebietes innerhalb der Ostalpen 3. Südströmung 4. Südwestströmung 5. Westströmung 6. Nordwestströmung 7. Nordströmung 8. Tief über den Britischen Inseln 9. Tief im Südwesten 10. Tief über dem westlichen Mittelmeer 11. Tief im Süden 12. Tief auf der Zugstraße Adria-Polen 13. Tief über dem Kontinent 14. Meridionale Rinne 15. Hochdruck 16. Zwischenhoch und schwacher Hochdruckeinfluß 17. Zonale Hochdruckbrücke 18. Hoch über Finnland 19. Hoch im Osten IV Witterung und Niederschlagsverhältnisse in den einzelnen Landschaften 1. Nordalpen 2. Ennstal 3. Niedere Tauern 4. Norische Senke 5. Stierisches Randgebirge 6. Steirische Bucht 7. Wiener Neustädter Bucht V. Jahreszeiten und Jahresablauf der Witterung A. Jahreszeiten 1. Winter 2. Frühjahr 3. Sommer 4. Herbst B. Jahresablauf der Witterung, Singularitäten VI. Zusammenfassung Literaturverzeichnis
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  • 80
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/31
    In: CRREL Report, 83-31
    Description / Table of Contents: A mathematical model is described that is used to determine the maximum ice conveyance capacity of a river channel. Based upon this model, computer programs were developed that enable the ice discharge to be calculated for steady-state flow conditions. For rivers that have uniform flow, the maximum ice-conveying capacity can be described with a simple function expressed in terms of the size of the ice fragments, channel geometry, and the flow of water in the river. For nonuniform flows, the computer program determines the elevation profile of the surface layer in addition to other flow characteristics, such as the velocity and surface concentration of the ice fragments. The location along this surface profile where the ice conveyance capacity becomes less than the upstream supply is determined and is considered to be the position where a surface ice jam or ice bridge will be formed.
    Type of Medium: Series available for loan
    Pages: iv, 21 Seiten , Illustrationen
    Series Statement: CRREL Report 83-31
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Constitutive relationships Equations of motion Uniform flow Nonuniform flow Ice transport: Uniform flow Symmetric channel Asymmetric channel Ice transport: Nonuniform flow Further considerations Basis for model improvement Conclusions Literature cited
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  • 81
    Call number: ZSP-201-83/32
    In: CRREL Report, 83-32
    Description / Table of Contents: Ice forces on a bridge pier in the Ottauquechee River, in Quechee, Vermont, were measured by installing fourpanels-each capable of measuring forces in the normal and tangential direction - on both sides of a vertical V-shaped pier nose. The measured forces are presented for a short period during an ice run. After the ice run, the thickness and sizes of the ice floes were measured and the compressive strength of the ice was determined in the laboratory from the ice samples collected along the river banks. The water level measurements made at several locations along theriver are also presented for the period of the ice run.
    Type of Medium: Series available for loan
    Pages: ii, 8 Seiten , Illustrationen
    Series Statement: CRREL Report 83-32
    Language: English
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  • 82
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-83/33
    In: CRREL Report, 83-33
    Description / Table of Contents: A thermodynamic model has been developed that for the first time describes the entire creep process, including primary, secondary, and tertiary creep, and failure for both constant stress (CSR) tests (σ= const.) and constant strain rate (CSR) tests (ϵ = const.), in the form of a unified constitutive equation and unified failure criteria. Deformation and failure areconsidered as a single thermoactivated process in which the dominant role belongs to the change of entropy. Failure occurs when the entropy change is zero. At that moment the strain rates in CS tests reach the minima and stress in CSR tests reaches the maximum (peak) values. Families of creep (ϵ vs τ) and stress-strain (σ vs ϵ) curves, obtained from uni-axial compression CS and CSR tests of frozen soil, respectively (both presented in dimensionless coordinates), are plotted as straight lines and are superposed, confirming the unity of the deformation and failure process and the validity of the model. A method is developed for determining the parameters of the model, so that creep deformation and the stress-strain relationship of ductile materials such as soils can be predicted based upon information obtained from either type of test.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 83-33
    Language: English
    Note: CONTENTS Abstract Nomenclature Introduction Principal relationships Constitutive equation Failure criteria Secondary creep: Flow equations Creep at constant stress (σ = Const.) Creep model Creep strain (σ = Const.) Creep at constant strain rate (ϵ = Const.) Stress-strain relationship Stress/strain/strain rate at failure Test data Preliminary analysis Constant stress tests (σ = Const.) Constant strain rate tests (ϵ = Const.) The principle of superposition Thermodynamic equation of creep Conclusions Literature cited
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  • 83
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/3
    In: CRREL Report, 84-3
    Description / Table of Contents: The results of resistance tests in level ice and broken ice channels are presented for two models of the WTGB 140-fticebreaker at scales of 1:10 and 1:24, respectively. No scale effect on the resistance in level ice could be detected between the two models. From the test results an empirical predictor equation for the full scale ice resistance is derived. Predicted resistance is compared against, and found to be 25 to 40% larger than, available full-scale values estimated from thrust measurements during full-scale trials of the Great Lakes icebreaker Katmai Bay.
    Type of Medium: Series available for loan
    Pages: v, 25 Seiten , Illustrationen
    Series Statement: CRREL Report 84-3
    Language: English
    Note: COTENTS Abstract Preface Nomenclature Introduction Model characteristics and test conditions Ice-hull coefficient of friction Measurements of ice properties Experimental procedures Data acquisition system Test program and procedures for 1:10 model Test program and procedures for 1:24 model Analysis of test results Comparison of test results between 1:10 and 1:24 models Analysis of tests in broken or brash-filled ice channels Analysis of tests in level ice Full-scale prediction of level ice resistance Conclusions Literature cited
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  • 84
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/4
    In: CRREL Report, 84-4
    Description / Table of Contents: Ice problems developed in the Sault Ste. Marie, Michigan, portion of the St. Marys River because of winter navigation. Passing ships and natural influences moved ice from Soo Harbor into Little Rapids Cut in sufficient quantities to jam, cause high water in the harbor, and prevent further ship passage. After physical model and engineering studies, two ice booms with a total span of 1375 ft (419 m) with a 250-ft (76-m) navigation opening between were installed at the head of Little Rapids Cut in 1975. A modest field study program on the booms was conducted for the ensuring four winters to determine ice and boom interaction and the effects of ship passages on the system. Forces on some anchors were recorded and supplemental data were taken by local personnel. Several reports have been written about the booms' early operations. This paper presents four-year summary of the main effects of the booms on ice and ship interaction and vice versa. Throughout the four winter seasons, the small quantities of ice lost over and between the booms were manageable. Ships usually passed through the boom without influencing the boom force levels, but at time they brought about large changes. One boom needed strengthening, and artificial islands were added for upstream ice stability. Coast Guard icebreakers were also a necessary part of winter navigation in this area.
    Type of Medium: Series available for loan
    Pages: iv, 18 Seiten , Illustrationen
    Series Statement: CRREL Report 84-4
    Language: English
    Note: CONTENTS Abstract Preface Introduction St. Marys River Ice problems Remedial measures Field studies Highlights, trends, and major findings Modifications to boom Maximum forces Ship traffic Characteristics Effect of boom forces Effect on ice Conclusion Literature cited Appendix A: Ice boom forces
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  • 85
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/5
    In: CRREL Report, 84-5
    Description / Table of Contents: Diatom species composition and relative abundances were determined for ice cores obtained from Weddell Sea pack ice during the October-November 1981 Weddell Polynya Expedition (WEPOLEX). Ice thickness and salinity indicate that the ice was less than one year old. The predominant ice type (70%) was frazil, which has the capacity to mechanically incorporate biological material through nucleation and scavenging. Diatoms were found throughout the length of the cores. Species showed down-core fluctuations in abundance that appeared to be correlated with changes in ice type. Pennate forms were more abundant than centrics, the average ratio being 16:1. Diatom frustules with intact organic material were more abundant (5 billion cells/liter). Differences in species abundances are attributed initially to incorporation of algal cells from a temporally changing water column and subsequently to diatom reproduction within the ice. Scanning electron micrographs illustrating the morphologic characteristics of the predominant species are included.
    Type of Medium: Series available for loan
    Pages: iv, 46 Seiten , Illustrationen
    Series Statement: CRREL Report 84-5
    Language: English
    Note: Contents Abstract Preface Introduction Materials and methods Results Discussion Conclusions Literature cited Appendix A: Taxonomic terms Appendix B: Differences in species composition and abundance in duplicate samples examined under optical and inverted light microscopes Appendix C: Morphologic descriptions and SEM micrographs
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  • 86
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/7
    In: CRREL Report, 84-7
    Description / Table of Contents: Experiments were conducted in CRREL's refrigerated flume facility to examine the two-dimensional force distribution of a floating, fragmented ice cover restrained by a boom in a simulated river channel. To determine the force distribution, a vertically walled channel, instrumented for measuring normal and tangential forces, and an instrumented restraining boom were installed in a 40.0- by 1.3-m flume. Two sizes of polyethylene blocks and two similar sizes of fresh-water ice blocks were tested using water velocities ranging from 10 to 30 cm/s. The forces measured at the instrumented boom leveled off with increasing cover length. The contribution of the increasing shear forces developed along theshorelines to this leveling off in the data was clearly evident. The shear coefficients of the polyethylene blocks averaged 0.43, and the freshwater ice averaged 0.044. The normal force measured along the instrumented shoreline could not be related simply by a K coefficient to the longitudinal force; another expression was required, with a term being a function of the cover thickness and independent of the undercover shear stress or cover length. By adding this term, good agreement was then found between the measured and predicted values of the boom forces and the shoreline normal and shear forces
    Type of Medium: Series available for loan
    Pages: iv, 22 Seiten , Illustrationen
    Series Statement: CRREL Report 84-7
    Language: English
    Note: CONTENTS Abstract Preface Introduction Experiments Test flume facility Experimental apparatus Experimental procedure Results Plastic versus freshwater ice Shoreline forces Boom forces Average shear stress under ice cover Internal forces Discussion Data scatter Summary and conclusions Literature cited Appendix A: Experimental results
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  • 87
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/6
    In: CRREL Report, 84-6
    Description / Table of Contents: An expression relating aerosol growth to cold environmental conditions was developed. This was accomplished by solving the diffusion equation with the method of Laplace transformation. The series solution was expressed in terms of the dimensionless parameters K (ratio of vapor density over droplet surface to droplet density), ω (ratio of environmental vapor density at time zero to vapor density over droplet surface), and dimensionless time τ (ratio of product of diffusion coefficient D and time t to square of initial radius of condensation nucleus). To take into account the variation of the vapor density over the surface of an acidic condensation nucleus due to the continuous dilution of the droplet, the solution was obtained by assuming various levels of constant vapor concentration. The final expression [R/R sub o - 1 = 2.4917 x 10 to the minus 18th power) exp(0.0737 θ) (P sub RHS/25) x (100-P sub RHS) τ to the 0.9890 powder] can be used to compute the value of R once the values of initial radius R sub o, relative humidity P sub RH, percent of relative humidity at the droplet surface P sub RHS, and environmental temperature θ are given.
    Type of Medium: Series available for loan
    Pages: vi, 28 Seiten , Illustrationen
    Series Statement: CRREL Report 84-6
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature General background The problem Method of solution Results and discussion Conclusions Literature cited Appendix: Evaluation of rn's in equation 25
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  • 88
    Monograph available for loan
    Monograph available for loan
    New York, NY [u.a.] : Wiley
    Associated volumes
    Call number: G 8116
    In: Chemical analysis, 27
    Type of Medium: Monograph available for loan
    Pages: XI, 489 S
    Edition: 2nd. ed.
    ISBN: 047102743X
    Series Statement: Chemical analysis 27
    Language: English
    Location: Upper compact magazine
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  • 89
    Call number: MOP 46028/1983 / Mitte
    In: World weather watch : Consolidated report on the voluntary co-operation programme including projects approved for circulation, 1983
    Type of Medium: Series available for loan
    Language: English
    Location: MOP - must be ordered
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  • 90
    Call number: MOP 43204(2)/ Mitte ; MOP 43204(1) / Mitte
    In: WMO / World Meteorological Organization
    Type of Medium: Series available for loan
    Pages: 1512 Seiten , Illustrationen
    Series Statement: IAHS-AISH publication 107
    Language: English , Undetermined
    Location: MOP - must be ordered
    Location: MOP - must be ordered
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  • 91
    Monograph available for loan
    Monograph available for loan
    Düsseldorf : Droste Verlag
    Call number: MOP 47680 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 142 Seiten , Illustrationen, 1 Karte
    Language: German
    Location: MOP - must be ordered
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  • 92
    Monograph available for loan
    Monograph available for loan
    Dresden : Steinkopff
    Call number: MOP 43658 / Mitte
    Type of Medium: Monograph available for loan
    Pages: XV, 439 Seiten , Illustrationen , 24 cm
    Language: German
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  • 93
    Call number: MOP 46080 / Mitte
    In: 82-16, Research reports / International Institute for Applied Systems Analysis
    Type of Medium: Series available for loan
    Pages: 59 Seiten , Illustrationen
    ISBN: 3704500364
    Series Statement: Research reports / International Institute for Applied Systems Analysis 82-16
    Language: English
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  • 94
    Call number: MOP 43785 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 743 Seiten , Illustrationen
    Edition: Dritte, stark umgearbeitete Auflage
    ISBN: 3437301810
    Language: German
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  • 95
    Monograph available for loan
    Monograph available for loan
    Moskva : Izdatel'stvo Inostrannoj Literatury
    Call number: MOP 47295 / Mitte
    Type of Medium: Monograph available for loan
    Pages: 366 Seiten , 23 cm
    Language: Russian
    Note: In kyrillischer Schrift
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  • 96
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/17
    In: CRREL Report, 82-17
    Description / Table of Contents: Seismic P and SH wave refraction experiments at the NATO RSG-11 test site in Munster Nord, Federal Republic of Germany, reveal the presence of a nearly horizontal, three-layer velocity structure. The upper layer, composed of un­consolidated glacial till, is 1 m thick and has P (compressional) and SH (shear-horizontal) wave velocities of 240 and 165 m s-1. The second layer, made up of similar, more compacted material, is 9.5 m thick, with a P wave velocity of 470 m s-1 and an SH wave velocity of 275 m s-1. The third layer, interpreted as the groundwater table, is located at a depth of 10.5 m and has a P wave velocity of 1590 m s-1. The SH wave velocity of this layer is controlled by the matrix material and is the same as that of the second layer. A single, unreversed observation indicated a fourth layer at a depth of about 20 m, but the existence of this layer remains unconfirmed. The observed fundamental mode Love wave dispersion is in agreement with the theoretical dispersion predicted by the refraction velocities. Computed partial derivatives of phase velocity with respect to shear wave velocity show, for the frequencies observed, that the dispersion confirms the thicknesses and velocities of the two upper layers and is not affected by the deeper structure.
    Type of Medium: Series available for loan
    Pages: iv, 33 Seiten , Illustrationen
    Series Statement: CRREL Report 82-17
    Language: English
    Note: CONTENTS Abstract Preface Introduction Refraction experiments Procedure Equipment Results P waves Low velocity zone SH waves Surface wave experiments Summary and discussion Literature cited Appendix A: P wave refraction data Appendix B: SH wave refraction data. Appendix C: Surface wave dispersion calculations
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  • 97
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-82/18
    In: CRREL Report, 82-18
    Description / Table of Contents: Snow and ice control on highways has come to rely heavily on the use of sodium chloride to maintain a trafficable surface for unimpeded movement. Empirical approaches have led to a wide range of application rates, some clearly excessive, but justified on the ground of safety and expediency. The combination of environmental degradation from the huge quantities of salt entering the environment, along with the increased cost of salt itself and the cost of its application have spurred the search for more precise knowledge of the proper amount of salt to apply to a pavement, considering a range of environmental, traffic and chemical parameters. Since controlled tests in the field are extremely difficult to make, a circular test track of three test pavements, dense-graded asphaltic concrete (DGA), open-graded asphaltic concrete (DGA) and portland cement concrete (PCC), was constructed in a coldroom. Natural snow and ice were applied to the pavements and an instrumented slipping wheel was driven over the surfaces to generate frictional forces. These forces were measured and then used to evaluate the response to salt application with time for three test temperatures. OGA had the lowest friction values at a temperature near the freezing point, but higher initial values or more rapidly increasing values than DGA and PCC following salt application at the two lower temperatures. Optimum application rate of salt on PCC and DGA lies between 100 and 300 lb/lane mile (LM), and a higher rate resulted in slight or no improvement in friction. DGA showed anomalous results: lower friction for 300 Ib/LM and higher friction for both 100 and 500 Ib/LM.
    Type of Medium: Series available for loan
    Pages: vi, 55 Seiten , Illustrationen
    Series Statement: CRREL Report 82-18
    Language: English
    Note: CONTENTS Abstract Preface Introduction Objectives Background Approach Influencing factors Field factors Laboratory Laboratory trafficking tests Force measurement and coefficient of friction Test tire slip Surface friction gauge Test procedure British portable tester Experimental results Conclusions Recommendations Literature cited Appendix A. Test pavements Appendix B. Pennsylvania State University field study Appendix C. Rochester Institute of Technology field study
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  • 98
    Monograph available for loan
    Monograph available for loan
    New Delhi : Meteorological Department
    Call number: MOP 41128 / Mitte
    Type of Medium: Monograph available for loan
    Pages: ca. 450 Seiten
    Series Statement: India Weather Review : Part C Annual Summary
    Language: English
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  • 99
    Call number: MOP 45579 / Mitte
    In: Topics in current physics, 28
    Type of Medium: Monograph available for loan
    Pages: IX, 152 Seiten , Illustrationen
    ISBN: 3540112294 , 0387112294
    Series Statement: Topics in current physics 28
    Language: English
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  • 100
    Series available for loan
    Series available for loan
    Hanover, NH : U.S. Army Cold Regions Research and Engineering Laboratory
    Associated volumes
    Call number: ZSP-201-84/2
    In: CRREL Report, 84-2
    Description / Table of Contents: Investigations of the in situ complex dielectric constant of sea ice were made using time-domain spectroscopy. It was found that (1) for sea ice with a preferred horizontal crystal c-axis alignment, the anisotropy of polarizing properties of the ice increased with depth, (2) brine inclusion conductivity increased with decreasing temperature down to about -8 C, at which point the conductivity decreased with decreasing temperature, (3) the DC conductivity of sea ice increased with increasing brine volume, (4) the real part of the complex dielectric constant is strongly dependent upon brine volume but less dependent upon the brine inclusion orientation, (5) the imaginary part of the complex dielectric constant was strongly dependent upon brine inclusion orientation but much less dependent upon brine volume. Because the electromagnetic (EM) properties of sea ice are dependent upon the physical state of the ice, which is continually changing, it appears that only trends in the relationships between the EM properties of natural sea ice and its brine volume and brine inclusion microstructure can be established.
    Type of Medium: Series available for loan
    Pages: vi, 38 Seiten , Illustrationen , 1 Beilage
    Series Statement: CRREL Report 84-2
    Language: English
    Note: CONTENTS Abstract Preface Nomenclature Introduction Dielectric properties of sea ice Time-domain spectroscopy measurement Laboratory measurements Field measurements Analysis of ladder data Conductivity of brine and sea ice Complex dielectric constant of brine and sea ice Discussion and conclusions Literature cited
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